How to get rid of an insert box on my Garmin when using built in maps

I am not sure what I did, but I was working on my 840xs and was moving cursor down to fla west coast, and I have a small insert following along. It show part of the map with .5 mile with small boat, never had this before. What can I do to get rid of this. I don't want to go to factory settings since I just updated my unit.